Semiconductor based switching device



FIG. 1 is a front elevational view of a first embodiment of a semiconductor based switching device showing our new design;

FIG. 2 is rear elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a left side elevational view thereof;

FIG. 7 is a perspective view thereof;

FIG. 8 is a front elevational view of a second embodiment of a semiconductor based switching device showing our new design;

FIG. 9 is rear elevational view thereof;

FIG. 10 is a top plan view thereof;

FIG. 11 is a bottom plan view thereof;

FIG. 12 is a right side elevational view thereof;

FIG. 13 is a left side elevational view thereof;

FIG. 14 is a perspective view thereof;

FIG. 15 is a front elevational view of a third embodiment of a semiconductor based switching device showing our new design;

FIG. 16 is rear elevational view thereof;

FIG. 17 is a bottom plan view thereof;

FIG. 18 is a top plan view thereof;

FIG. 19 is a right side elevational view thereof;

FIG. 20 is a left side elevational view thereof;

FIG. 21 is a perspective view thereof;

FIG. 22 is a front elevational view of a fourth embodiment of a semiconductor based switching device showing our new design;

FIG. 23 is rear elevational view thereof;

FIG. 24 is a bottom plan view thereof;

FIG. 25 is a top plan view thereof;

FIG. 26 is a right side elevational view thereof;

FIG. 27 is a left side elevational view thereof;

FIG. 28 is a perspective view thereof;

FIG. 29 is a front elevational view of a fifth embodiment of a semiconductor based switching device showing our new design;

FIG. 30 is rear elevational view thereof;

FIG. 31 is a top plan view thereof;

FIG. 32 is a bottom plan view thereof;

FIG. 33 is a right side elevational view thereof;

FIG. 34 is a left side elevational view thereof;

FIG. 35 is a perspective view thereof;

FIG. 36 is a front elevational view of a sixth embodiment of a semiconductor based switching device showing our new design;

FIG. 37 is rear elevational view thereof;

FIG. 38 is a top plan view thereof;

FIG. 39 is a bottom plan view thereof;

FIG. 40 is a right side elevational view thereof;

FIG. 41 is a left side elevational view thereof; and,

FIG. 42 is a perspective view thereof.

The broken line portion of the figure drawings is included to show unclaimed subject matter only and forms no part of the claimed design. 

The ornamental design for a semiconductor based switching device, as shown. 